GeForce GT 230 vs GeForce GTS 450

Intro

Compare those specifications to the GeForce GTS 450, which makes use of a 40 nm design. nVidia has clocked the core frequency at 783 MHz. The GDDR5 RAM works at a speed of 902 MHz on this specific model. It features 192 SPUs as well as 32 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 230		65 Watts
GeForce GTS 450		106 Watts
	Difference: 41 Watts (63%)

Memory Bandwidth

The GeForce GTS 450 should theoretically perform quite a bit faster than the GeForce GT 230 overall. (explain)

GeForce GTS 450		57728 MB/sec
GeForce GT 230		38400 MB/sec
	Difference: 19328 (50%)

Texel Rate

The GeForce GTS 450 should be much (more or less 185%) more effective at anisotropic filtering than the GeForce GT 230. (explain)

GeForce GTS 450		25056 Mtexels/sec
GeForce GT 230		8800 Mtexels/sec
	Difference: 16256 (185%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTS 450 is superior to the GeForce GT 230, by a large margin. (explain)

GeForce GTS 450		12528 Mpixels/sec
GeForce GT 230		4400 Mpixels/sec
	Difference: 8128 (185%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in MB per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.